Mathematics - Data Handling
Exam Duration: 45 Mins Total Questions : 30
What is the arithmetic mean of 1, 2, ...., 9 and 10?
- (a)
5.5
- (b)
6
- (c)
7.5
- (d)
10
In a data, 10 numbers are arranged in increasing order. If the 7th entry is increased by 4, by how much does the median increase?
- (a)
Zero
- (b)
4
- (c)
6
- (d)
5
What is the mean of x, x + 3, x + 6, x + 9 and x + 12?
- (a)
x + 3
- (b)
x + 6
- (c)
x + 9
- (d)
x + 12
What is the median of the data 46, 64, 87, 41, 58, 77, 35, 90, 55, 33, 92?
- (a)
87
- (b)
77
- (c)
58
- (d)
60.2
Which of the following is true about mean?
- (a)
It occurs most frequently.
- (b)
It divides observations into two equal parts.
- (c)
It is representative of the whole group.
- (d)
It is the sum of observations.
If each entry of a data is increased by 5, how does the mean change?
- (a)
Remains the same.
- (b)
Increases by 5.
- (c)
Decreases by 5
- (d)
Becomes half.
The average weight of a sample of 10 apples is 52 g. Later it was found that the weighing machine had shown the weight of each apple 10 g less. What is the correct average weight of an apple?
- (a)
62 g
- (b)
54 g
- (c)
56 g
- (d)
52 g
The mean of 6,y, 7,x and 14 is 8.Which of the following is true?
- (a)
x + y = 13
- (b)
x - y = 13
- (c)
2x + 3y = 13
- (d)
x2 + y2 = 15
The heights of six mountains are 8200 m, 6000 m, 8600 m, 7500 m, 8800 m and 6500 m. Based on this information, answer the questions given. What is the mode of the heights?
- (a)
6000
- (b)
8800
- (c)
Does not exist
- (d)
7500
The heights of six mountains are 8200 m, 6000 m, 8600 m, 7500 m, 8800 m and 6500 m. Based on this information, answer the questions given. Which of the following statements is true?
- (a)
The mean height of the mountains is greater than their median height.
- (b)
The mean height of the mountains is less than their mode.
- (c)
The median height of the mountains is less than their mode.
- (d)
The median height of the mountains is greater than their mean height.
The heights of six mountains are 8200 m, 6000 m, 8600 m, 7500 m, 8800 m and 6500 m. Based on this information, answer the questions given. Rakesh and Sanjay planned to go trekking on any of these mountains. They wrote the heights on chits of paper, shuffled them and picked one. What is the probability that the height picked is the maximum?
- (a)
\(\frac { 1 }{ 3 } \)
- (b)
\(\frac { 2 }{ 3 } \)
- (c)
\(\frac { 1 }{ 6 } \)
- (d)
\(\frac { 1 }{ 4 } \)
The ages (in years) of some teachers of a school are given in the box.
26, 32, 38, 41, 26, 31, 35, 33, 26, 37
Based on this information, answer the following questions. What is the range of the ages of the teachers?
- (a)
15 years
- (b)
26 years
- (c)
41 years
- (d)
32 years
The ages (in years) of some teachers of a school are given in the box.
26, 32, 38, 41, 26, 31, 35, 33, 26, 37
Based on this information, answer the following questions. What is the mode of the given data?
- (a)
32 years
- (b)
41 years
- (c)
26 years
- (d)
31 years
The heights of 10 students, measured in cm are as follows:
143,132,150,139,128,135,151,146, 141, 149
Based on this information, answer the following questions. What is the height of the shortest girl?
- (a)
128 cm
- (b)
141 cm
- (c)
151 cm
- (d)
150 cm
The heights of 10 students, measured in cm are as follows:
143,132,150,139,128,135,151,146, 141, 149
Based on this information, answer the following questions. What is the range of the data?
- (a)
35 cm
- (b)
31 cm
- (c)
23 cm
- (d)
28 cm
Which of these is impossible?
- (a)
The next traffic light seen is red.
- (b)
A tossed die lands up with 8 on top.
- (c)
A flipped coin landsup with headon top.
- (d)
It rains tommorow.
The bar graph shows the sales of fruits and vegetables in a store in 4 hours on a certain evening.
How many kilograms of fruits were sold during the four hours?
- (a)
120 kg
- (b)
124 kg
- (c)
126 kg
- (d)
144 kg
The number of chapatis needed for 30 students of a class are given in the box.
2, 1, 2, 3, 3, 2, 2, 2, 4, 4
3, 2, 3, 3, 2, 2, 2, 2, 3, 3
2, 3, 2, 2, 2, 3, 3, 3, 3, 4
Calculate the mode of the data.
- (a)
3
- (b)
2
- (c)
1
- (d)
4
What is the arithmetic mean of first five prime numbers?
- (a)
6.2
- (b)
5.2
- (c)
6.5
- (d)
5.6
The bargraph shows the marks obtained by four students in quarterly examination.
Which two students secured equal marks?
- (a)
Shravan and Oeepa
- (b)
Sharanya and Shravan
- (c)
Deepa and Nandan
- (d)
Sharanya and Deepa
The bargraph shows the marks obtained by four students in quarterly examination.
Whose performance was the worst?
- (a)
Sharanya
- (b)
Deepa
- (c)
Shravan
- (d)
Nandan
The pie-chart depicts the results of a survey conducted to identify the favourite juice of some students.
How many students like other juices if the total number of students is 360?
- (a)
70
- (b)
80
- (c)
65
- (d)
60
The pie-chart depicts the results of a survey conducted to identify the favourite juice of some students.
How many students like orange juice, if the strength of the school is 720 ?
- (a)
150
- (b)
360
- (c)
180
- (d)
240
Study the following table which shows the production of three different types of cars over the years.
| Years | Production of car P | Production of Car Q | Production of Car R |
| 2001 | 76 | 59 | 28 |
| 2002 | 82 | 62 | 36 |
| 2003 | 65 | 47 | 42 |
| 2004 | 70 | 54 | 31 |
| 2005 | 85 | 57 | 49 |
| 2006 | 80 | 68 | 38 |
The average production of which of the following types of cars was maximum?
- (a)
Q
- (b)
P
- (c)
R
- (d)
All are equal
Mean of 9 observations was found to be 35. Later on, it was detected that an observation 81 was misread as 18, then the correct mean of the observations is_______________
- (a)
40
- (b)
41
- (c)
42
- (d)
43
If the mean of 6,8,5, x and 4 is 7, then the value of x is___________________
- (a)
11
- (b)
12
- (c)
13
- (d)
14
The mode of the following distribution is ________________.
| Size | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
| Frequency | 10 | 12 | 25 | 20 | 25 | 15 | 11 |
- (a)
2
- (b)
8
- (c)
Both 4 and 6
- (d)
5
Consider the weights of 9 students (in kg) of a particular class given below:34,35,36,40,35,35,40,45,39.
Which of the following is in the order from the least to the greatest?
- (a)
Mean, Mode, Median
- (b)
Mean, Median, Mode
- (c)
Mode, Median, Mean
- (d)
Mode, Mean, Median
The given line graph shows the number of toy bikes sold by Robin over 5 days
If the cost of 1 toy bike is Rs 33.60, then how much did he earn in 5 days?
- (a)
Rs 9408
- (b)
Rs 9240
- (c)
Rs 8400
- (d)
Rs 8408
The given bar graph shows the result of annual examination in a school from class V to class X.
In which standard is the result of the girls more than the average result of the boys from the school?
- (a)
IX
- (b)
VIII
- (c)
VI
- (d)
X
